90 Minute Timer

Ninety minutes is roughly one full sleep cycle and the regulation length of a soccer match.

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Rings even in a background tab · Space bar = start/pause

What can you do in 90 minutes?

Tip: If a 20-minute nap is not enough, a 90-minute nap lets you wake near the end of a cycle rather than mid-deep sleep.

90 minutes in other units

90 minutes
5,400 seconds
5,400,000 milliseconds
150% of an hour
fits 16 times into a day

Need a different length? Use the custom countdown timer, or set a clock-time alarm instead.

All timers

Seconds

Minutes

Hours

90-minute timer FAQ

How do I set a timer for 90 minutes?
Press Start on this page. The 90-minute countdown begins immediately — no settings to change. Press the space bar to pause or resume.
Will the 90-minute timer ring if I switch tabs?
Yes. The countdown runs from a fixed end time, so it keeps going and rings in a background tab. The remaining time also shows in the tab title. Keep the tab open and the device unmuted.
Can I get a notification when it ends?
Yes — allow notifications when your browser asks after you press Start. You'll get a desktop or phone notification in addition to the beep.
Does it work offline?
Yes. After your first visit the page is cached, so the timer works without an internet connection.